As long as you don't put anything else in your sig, I think it'll be okay. xD
HONESTLY, it totally doesn't mean anything, bahaha. I was tryna think of a username and I liked the word "Tao" (it's chinese) but that was taken... so I thought to maybe add "chan". Then I thought chan was kind of lame, and I was like, "cha? Taocha? ... that seems alright". XD